3 years ago

F(x)=x^2-9x+2 evaluate f(-2)

Mathematics

1 answer:

Anton [14]3 years ago

4 0

I believe is your answer
Because u plug in -2 to all x
F(x)= (-2)^2-9(-2)+2
F(x)=4+18+2
F(x)=24

You might be interested in

I will give brainliest. I need help ASAP.

Tamiku [17]

Answer:

\I got not answer cause im da BUDDHA

But gimme brainliest squekky plssss

4 0

3 years ago

PLEASEEEEEEEE HELP ME TY SO MUCH LOVE YOUUU HAVE A GREEAT DAYYYY

Vitek1552 [10]

Answer:

should have 3.5 for the first one ::))

Step-by-step explanation:

8 0

3 years ago

In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo

larisa86 [58]

Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine $z_{\frac{\alpha}{2}}=z_{0.005}$

Now by using z score table we find that $z_{\frac{\alpha}{2}}=2.58$

The boundaries of the confidence interval are:

$\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64$

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0

4 years ago

Kareem wants to write an equation for the data in the table below.

arlik [135]

Answer:

Y = Mx+C (General equation of a straight line)

Step-by-step explanation:

From the data given above, we could deduce that the data has two coefficients (X and Y). The numbers could be used to generate equation of a straight line.

E.g 2x+4 = 5y which is equivalent to

Mx+C = Y

Where C is the constant.

5 0

3 years ago

Read 2 more answers

Use the picture to figure out the 4 digit number combination.

professor190 [17]

3574 it’s the number of books each kids has

7 0

3 years ago

Read 2 more answers

F(x)=x^2-9x+2 evaluate f(-2)​

F(x)=x^2-9x+2 evaluate f(-2)